Operation, Warning, Caution – Ryobi D45CK User Manual
Page 10
10
UN
LO
CK
®
UNL
OC
K
FORWARD
SELECTOR
Fig. 3
REVERSE
This tool has the feature of being reversible. The direction 
of rotation is controlled by a selector located above the 
switch trigger. With the drill held in normal operating 
position, the direction of rotation selector should be 
positioned to the left of the switch for drilling. The 
drilling direction is reversed when the selector is to the 
right of the switch.
CAUTION:
To prevent gear damage, always allow chuck to come
to a complete stop before changing the direction of
rotation.
To stop, release switch trigger and allow the chuck to
come to a complete stop.
WARNING:
Your drill should never be connected to power supply 
when you are assembling parts, making adjustments, 
installing or removing drill bits, cleaning, or when not 
in use. Disconnecting your drill will prevent accidental 
starting that could cause serious personal injury.
KEYLESS CHUCK
See Figure 4.
A keyless chuck has been provided with your drill to allow 
for easy installation and removal of bits. As the name 
implies, you can hand tighten or release drill bits in the 
chuck jaws. Arrows on the chuck indicate which direc-
tion to rotate the chuck body in order to 
LOCK (tighten)
or
UNLOCK (release) the chuck jaws. Grasp and hold
the collar of the chuck with one hand. Rotate the chuck 
body with your other hand. Insert drill bit straight into the 
chuck the full length of the jaws, and tighten securely by 
rotating the chuck body in a clockwise direction.
WARNING:
Do not hold chuck body with one hand and use 
power of the drill to tighten chuck jaws on drill bit. 
Chuck body could slip in your hand or your hand 
could slip and come in contact with rotating drill bit. 
This could cause an accident resulting in serious 
personal injury.
INSTALLING BITS
See Figure 4.
n
Unplug your drill.
WARNING:
Failure to unplug your drill could result in accidental 
starting causing serious injury.
n
Open or close the chuck jaws to a point where the
opening is slightly larger than the bit size you intend 
to use. Also, raise the front of your drill slightly to 
keep the bit from falling out of the chuck jaws.
n
Insert drill bit straight into chuck the full length of
the jaws as shown in figure 4.
n
Tighten the chuck jaws on drill bit.
n
To tighten the chuck jaws on drill bit; grasp and hold
the collar of the chuck with one hand, while rotating 
the chuck body with your other hand.
Note: Rotate the chuck body in the direction of the 
arrow marked 
LOCK to tighten chuck jaws.
n
Do not use a wrench to tighten or loosen the chuck 
jaws.
OPERATION
REVERSIBLE
See Figure 3.
UNLOCK
(Release)
DRILL BIT
CHUCK
JAWS
CHUCK BODY
LOCK
(Tighten)
Fig. 4
RIGHT
CHUCK
COLLAR